CN219608793U - Detection device and detection system - Google Patents

Abstract

A detection apparatus includes a first detection module for detecting positional information of an object to be detected in a first direction, a second detection module for detecting positional information of the object to be detected in a second direction, and a detection module for detecting the object to be detected from the second direction, the second detection module being configured to move in the first direction in response to a detection result of the first detection module, the detection module being configured to move in the second direction in response to a detection result of the second detection module. By means of the first detection module and the second detection module, the detected object can be detected from two dimensions in the process of conveying the detected object, so that the detection module can be ensured to accurately and rapidly move to a detection position, and conditions are created for improving detection precision and detection efficiency; for example, when the device is applied to pole piece burr detection, the focusing position of the detection module can be automatically adjusted according to the offset of the pole piece in the horizontal and vertical directions, so that the detection of the pole piece burr is reliably completed.

Description

Detection device and detection system

Technical Field

The utility model relates to the technical field of detection, in particular to a detection device and a detection system.

Background

Taking the process treatment of the battery pole piece as an example, in the process of cutting a pole piece material belt (such as a copper foil material belt or an aluminum foil material belt) applied to the middle layer of the pole piece by using die cutting equipment, burrs are easy to be generated on the die cutting edge of the aluminum foil or the copper foil, and if the length of the burrs exceeds a certain range (for example, exceeds the thickness of the insulating membrane), the insulating membrane is punctured, so that the yield of the battery is reduced, and even the problems of battery scrapping, ignition, explosion and the like caused by the short circuit of the anode and the cathode are also caused. Therefore, the burr detection of the pole piece is extremely important.

At present, a microscope is commonly used for burr detection in the industry, and because of low imaging speed and difficulty in realizing online high-speed detection, only offline spot check can be performed, and the problems of low detection efficiency, detection precision, difficulty in controlling the quality of a pole piece and the like are caused.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a detection device and a detection system using the detection device so as to achieve the purpose of improving the detection efficiency and the detection precision.

According to a first aspect, in one embodiment, there is provided a detection apparatus for detecting an object under conveyance, the detection apparatus including:

the first detection module is used for detecting the position information of the detected object in the first direction;

the second detection module is used for detecting the position information of the detected object in the second direction; the second detection module is configured to be movable in the first direction in response to a detection result of the first detection module to adjust a detection position of the second detection module; and

the detection module is used for detecting the detected object from the second direction; the detection module is configured to be capable of moving relative to the object to be detected along the second direction in response to the detection result of the second detection module so as to adjust the detection position of the detection module;

the first direction, the second direction and the conveying direction of the measured object are perpendicular to each other.

In one embodiment, the detection module includes:

the light source piece is used for providing detection light for the detected object;

the detection component is matched with the light source component; the detection component is used for receiving signal light formed by the tested object in the second direction and acquiring image information of the tested object; and

the detection driving piece is electrically connected with the second detection module, and the power end of the detection driving piece is coupled to the detection assembly; the detection driving piece is configured to drive the detection assembly to move along the second direction in response to the detection result of the second detection module.

In one embodiment, the light source member includes a first light source and/or a second light source; the light path of the first light source is at least partially coincident with the light path of the detection assembly, and the first light source is used for providing first detection light for the detected object; the second light source is used for providing second detection light different from the first detection light for the detected object, and a preset included angle is formed between the optical axis of the second detection light provided by the second light source for the detected object and the optical axis of the signal light collected by the detection assembly.

In one embodiment, the detection assembly comprises:

the detection camera is used for imaging the detected object to acquire image information of the detected object; a power end of the detection drive is coupled to the detection camera;

the detection lens is used for collecting signal light formed by the detected object and is arranged on the lighting surface side of the detection camera; and

the first conversion piece is arranged on a light path between the detection lens and the detection camera, signal light collected by the detection lens is converged on the detection camera through the first conversion piece, and first detection light provided by the first light source is incident to the detection lens through the first conversion piece.

In one embodiment, the detection assembly further includes a second conversion member disposed at an end of the detection lens away from the detection camera in the first direction; the first detection light provided by the first light source is incident to the detection lens along the first direction through the first conversion piece;

the second conversion piece is used for outputting the first detection light emitted by the detection lens to the object to be detected along the second direction, and the second conversion piece is also used for receiving the signal light formed by the object to be detected and outputting the signal light to the detection lens along the first direction.

In one embodiment, the first detection module includes a first position sensing element, and the first position sensing element is positioned and arranged at one side of the detected object in the first direction so as to detect the position information of the detected object; the second detection module is electrically connected with the first position sensing part and is arranged to be capable of moving along the first direction in response to the detection result of the first position sensing part;

and/or

The second detection module comprises a second position sensing piece and a detection driving piece, wherein the second position sensing piece is used for detecting the position information of the detected object in the second direction; the detection module is electrically connected with the second position sensing piece and is used for responding to the detection result of the second position sensing piece to move along the second direction; the power end of the detection driving piece is coupled to the second position sensing piece, and the detection driving piece is electrically connected with the first detection module, so that the second position sensing piece can be driven to move along the first direction in response to the detection result of the first detection module.

In one embodiment, the second position sensing member includes a ranging sensor and a third conversion member; wherein:

the distance measuring sensor is used for providing and receiving light beams so as to detect the position information of the measured object; the power end of the detection driving piece is coupled to the ranging sensor, and the detection module is electrically connected with the ranging sensor;

the third conversion piece is arranged at the probe end of the ranging sensor, the third conversion piece is used for outputting the light beam provided by the ranging sensor to the measured object along the second direction, and the third conversion piece is also used for outputting the light beam reflected by the measured object to the ranging sensor along the first direction.

In one embodiment, the device further comprises a loading module for positioning and fixing the detection device at a preset spatial position; the first detection module, the second detection module and the detection module are all arranged on the loading module; wherein:

the detection position of the second detection module is located downstream of the detection position of the first detection module in the conveying direction of the detected object, and the detection position of the detection module is located downstream of the detection position of the second detection module in the conveying direction of the detected object.

According to a second aspect, in one embodiment, a detection system is provided, including a conveying device and the detection device according to the first aspect, where the detection device is disposed in cooperation with the conveying device, and the conveying device is configured to carry a measured object and convey the measured object.

In one embodiment, the conveying device comprises a supporting mechanism, a conveying mechanism, a slitting mechanism and a plurality of traction mechanisms, wherein the conveying mechanism, the slitting mechanism and the traction mechanisms are sequentially arranged on the supporting mechanism, and the conveying mechanism comprises:

the conveying mechanism is used for rolling up the tested material strips, and the slitting mechanism is used for slitting the tested material strips to form a plurality of tested objects; the traction mechanisms are arranged at different height positions relative to the supporting mechanism, and correspond to the measured objects one by one so as to be capable of traction and/or rolling up the corresponding measured objects;

the number of the detection devices is multiple, and the detection devices are arranged on the supporting mechanism in a one-to-one corresponding matching mode with the traction mechanisms, so that the detection devices can detect the cutting edges of the corresponding detected objects.

The detection device according to the above embodiment includes a first detection module for detecting positional information of the object to be detected in a first direction, a second detection module for detecting positional information of the object to be detected in a second direction, and a detection module for detecting the object to be detected from the second direction, the second detection module being configured to move in the first direction in response to a detection result of the first detection module, the detection module being configured to move in the second direction in response to a detection result of the second detection module. By means of the first detection module and the second detection module, the detected object can be detected from two dimensions in the process of conveying the detected object, so that the detection module can be ensured to accurately and rapidly move to a detection position, and conditions are created for improving detection precision and detection efficiency; for example, when the device is applied to pole piece burr detection, the focusing position of the detection module can be automatically adjusted according to the offset of the pole piece in the horizontal and vertical directions, so that the detection of the pole piece burr is reliably completed.

Drawings

FIG. 1 is a schematic diagram of the structural assembly of a detection system according to an embodiment.

Fig. 2 is a schematic structural assembly diagram of a detection device according to an embodiment.

Fig. 3 is a schematic diagram of a relative positional relationship among modules in a detection apparatus according to an embodiment.

Fig. 4 is a schematic structural assembly diagram of a detection module in a detection device according to an embodiment.

Fig. 5 is a schematic diagram (a) of a detection principle of a detection module in a detection device according to an embodiment.

Fig. 6 is a schematic diagram (two) of a detection principle of a detection module in a detection device according to an embodiment.

Fig. 7 is a schematic structural assembly diagram of a first detection module in a detection device according to an embodiment.

Fig. 8 is a schematic structural assembly diagram of a second detection module in the detection device according to an embodiment.

In the figure:

10. a first detection module; 11. a first position sensing member; 12. a position adjusting member; 20. a second detection module; 21. a detection driving member; 22. a second position sensing member; 22a, ranging sensors; 22b, a third conversion member;

30. a detection module; 31. detecting a driving piece; 32. a first light source; 33. a second light source; 34. detecting a camera; 35. detecting a lens; 36. a first conversion member; 37. a second conversion member;

40. loading a module; 50. a support mechanism; 60. a conveying mechanism; 70. a traction mechanism; 80. a light shielding mechanism; A. a detection device; B. a material belt; C. and a battery pole piece.

Detailed Description

The utility model will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present utility model. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present utility model have not been shown or described in the specification in order to avoid obscuring the core portions of the present utility model, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.

Referring to fig. 1 to 8, an embodiment provides a detection system, which can be used for cutting and conveying a measured object and detecting and measuring a cutting edge (such as surface defects of the edge, length of burrs generated by cutting, and the like) of the measured object in the conveying process of the measured object; the detection system comprises a conveying device, a detection device A and other device components which exist according to the needs.

The following mainly uses the detection and measurement of the burr length on the cutting edge of the battery pole piece as an example, and the structural construction and detection principle of the detection system are described. However, it should be noted that the battery pole piece is only one specific detection object of the detection system, and the burr length is also only one specific detection operation item of the detection system; the detection system is also applied to related detection operations of other flexible products or workpieces such as films and the like.

Referring to fig. 1, the conveying device is mainly responsible for carrying a material strip B (such as a copper foil material strip, an aluminum foil material strip, or a material strip of a pole piece assembled with copper foil, aluminum foil and an insulating membrane) of a battery pole piece and conveying a branched material strip (for convenience of distinction and description, the branched material strip is defined as a battery pole piece C) formed by cutting the material strip B. The conveying device comprises a supporting mechanism 50, a conveying mechanism 60, a slitting mechanism (not shown in the figure) and a plurality of traction mechanisms 70, wherein the supporting mechanism 50 is mainly used as an installation carrier of the conveying mechanism 60, the slitting mechanism, the traction mechanisms 70 and the detection device A, and specifically, the conveying mechanism 60, the slitting mechanism, the detection device A and the traction mechanisms 70 are sequentially arranged on the supporting mechanism 50 along the conveying direction of a material belt B or a battery pole piece C.

Wherein the conveying mechanism 60 is mainly responsible for winding the material belt B and conveying the material belt B towards the direction of the traction mechanism 70; the slitting mechanism is mainly used for dividing the material belt B into a plurality of battery pole pieces C which are in one-to-one correspondence with the plurality of traction mechanisms 70 according to the battery specification when the material belt B passes; the traction mechanism 70 cooperates with the conveying mechanism 60 to apply traction to the material tape B or the corresponding battery pole piece C to complete the winding up of the battery pole piece C while the battery pole piece C is continuously conveyed.

In specific implementation, the number of the detection devices a can be set to be a plurality, the detection devices a, the traction mechanisms 70 and the battery pole pieces C are in one-to-one correspondence, and the plurality of traction mechanisms 70 are arranged at different height positions of the supporting mechanism 50; on the one hand, the plurality of battery pole pieces C can be conveyed along different paths, and on the other hand, a proper installation space is provided for the detection device A on the supporting mechanism 50; the detection device A is arranged between the corresponding traction mechanism 70 and the slitting mechanism along the conveying path of the corresponding battery pole piece C, so that the detection device A can detect and measure the corresponding battery pole piece C;

for example, the material belt B is cut by a cutting mechanism to form two battery pole pieces C, and the two traction mechanisms 70 mounted on the supporting mechanism 50 in a high-low manner are used to draw and roll up the corresponding battery pole pieces C along different paths; and the two detection devices A are arranged between the two battery pole pieces C in a one-to-one correspondence manner with the two battery pole pieces C. Imaging the corresponding cut surfaces and edges of the battery pole pieces C by means of the detection device A to obtain image information of the battery pole pieces C.

And the calculation and judgment of the burr length can be realized through the analysis of the image, so that the burr detection operation on the battery pole piece C is finally completed. It should be noted that, those skilled in the art should know that the image analysis and the calculation and judgment process of the burr length, etc. may be implemented by means of the prior art, for example, by configuring the corresponding algorithm for the detection device a, the detection system, etc. Therefore, the specific detection principle of the burr is not described too much here.

In other embodiments, the slitting mechanism may be omitted, and the number of the traction mechanism 70 and the detecting device a may be set to one; by means of the cooperation of the traction mechanism 70 and the conveying mechanism 60, the cut battery pole piece C is conveyed along a preset path, and the detection device A is arranged between the traction mechanism 70 and the conveying mechanism 60 along the conveying path of the battery pole piece C, so that burrs on the cut edge of the battery pole piece C are detected and measured.

Note that, the bold solid line with an arrow in fig. 1 represents the conveying direction of the battery pole piece C; in addition, the specific structure, action mechanism, etc. of the conveying device can be selectively configured with reference to the prior art, and the detecting device a and the related structure thereof will be mainly described below.

To describe the detecting device a and its related structure in more detail, in conjunction with fig. 1 to 4 and 8, a first direction and a second direction are defined herein based on the battery pole piece C, the first direction, the second direction and the conveying direction of the battery pole piece C being perpendicular to each other; the first direction may specifically refer to a vertical direction, that is, a direction in which the front surface and the back surface of the battery pole piece C are located in the conveying process; the second direction may specifically refer to a horizontal direction, i.e., a direction in which a dividing plane of the battery pole piece C connected between the front surface and the back surface is located during the transfer.

Referring to fig. 2 to 8, the detecting device a includes a first detecting module 10, a second detecting module 20, a detecting module 30, a loading module 40, and other functional modules according to need, which will be described in detail below.

The first detection module 10, the second detection module 20 and the detection module 30 are respectively installed on the loading module 40, so that the detection device a can be used as an integral functional device in the detection system (for example, installed on the supporting mechanism 60) by means of the loading module 40, and on the other hand, the approximate spatial position relationship or arrangement relationship among the first detection module 10, the second detection module 20 and the detection module 30 can be adjusted and set in advance according to actual detection requirements.

Of course, in some embodiments, the loading module 40 may be omitted, and the first detecting module 10, the second detecting module 20, and the detecting module 40 may be disposed at predetermined spatial positions according to actual requirements such as a detecting process, for example, separately mounted on the supporting mechanism 50 of the conveying device.

The first detection module 10 is mainly configured to detect position information of the battery pole piece C in a first direction (including an offset amount or a vertical runout amplitude of the battery pole piece C in a vertical direction), and feed back a detection result to the second detection module 20. The second detecting module 20 is mainly used for detecting the position information of the battery pole piece C in the second direction (including the offset or the left-right offset of the battery pole piece C relative to the detecting module 30 in the horizontal direction), and feeding back the detection result to the detecting module 30.

More specifically, the second detection module 20 is disposed in signal connection with the first detection module 10, and the second detection module 20 is configured to be movable in a first direction in response to a detection result of the first detection module 10 so as to adaptively adjust a detection position of the second detection module 20; namely, the second detection module 20 can follow the up-and-down regulation and control of the detection position of the battery pole piece C in the first direction according to the detection result of the first detection module 10, so as to ensure that the second detection module 20 can always detect the battery pole piece C, thereby accurately acquiring the position information (or the offset of the battery pole piece C relative to the detection module 30 in the horizontal direction) of the battery pole piece C in the second direction, and providing information support for the subsequent detection module 30 to adaptively adjust the detection position.

In particular, referring to fig. 3, the detection position of the second detection module 20 is downstream of the detection position of the first detection module 10 in the conveying direction of the battery pole piece C, so as to provide a sufficient time difference for the second detection module 20 to obtain the detection result of the first detection module 10 and adjust the detection position thereof, thereby ensuring the stability and effectiveness of the interaction of the first detection module 10 and the second detection module 20.

The detection module 30 is mainly used for imaging the battery pole piece C (specifically, the cut surface of the battery pole piece C and the edge portion thereof) from the second direction, and specifically, it can be understood that the detection module 30 images the battery pole piece C in a manner of facing the cut surface of the battery pole piece C in the second direction; the detection module 30 is in signal connection with the second detection module 20, and the detection module 30 is configured to be able to move in the second direction toward and away from the battery pole piece C in response to the detection result of the second detection module 20, so as to adaptively adjust the detection position of the detection module 30, which is also understood that the detection module 30 is able to follow the movement of the battery pole piece C in the second direction according to the detection result of the second detection module 20; in this way, the detection module 30 is ensured to accurately focus the battery pole piece C, and clear imaging is realized.

In particular, referring to fig. 3, the detection position of the detection module 30 is downstream of the detection position of the second detection module 30 in the conveying direction of the battery pole piece C, so as to provide a sufficient time difference for the detection module 30 to obtain the detection result of the second detection module 20 and adjust the detection position of the period, thereby ensuring the stability and effectiveness of the interaction between the detection module 30 and the second detection module 20.

Because the battery pole piece C is formed by cutting and the phenomenon that the battery pole piece C is offset in the vertical direction and/or the horizontal direction relative to the detection module 30 generally occurs in the process of traction and transmission of the battery pole piece C, the detection module 30 can not accurately focus and image the battery pole piece C easily, so that the detection precision of burrs can be seriously affected, and the battery pole piece C has great potential safety hazard after being applied to a battery.

In view of this, by means of the first detection module 10 detecting or monitoring the information such as the up-down jumping amplitude or the vertical offset of the battery pole piece C during the transmission process, the second detection module 20 can provide information support for adjusting the detection position thereof along the vertical direction, so as to ensure that the cut surface and the edge portion of the battery pole piece C are always located within the detection range of the second detection module 20; and the second detection module 20 is used for detecting the information such as the left-right deflection angle or the horizontal deflection amount of the battery pole piece C in the transmission process, so that information support can be provided for the detection module 30 to adjust the detection position (or adjust the distance between the detection module 30 and the battery pole piece C) along the horizontal direction, the detection module 30 can accurately focus the battery pole piece C, and finally a clear image is obtained.

On the one hand, by utilizing the mutual matching of the first detection module 10, the second detection module 20 and the detection module 30, the detection device A or the detection system can measure the burr length of the side surface of the battery pole piece C with high precision, which is beneficial to improving the detection quality; on the other hand, by utilizing the characteristic that the detection module 30 performs automatic focusing according to the detection result of the detection module, the detection device A or the detection system can perform on-line detection on the battery pole piece C, so that the detection efficiency is effectively improved.

It should be noted that the bold dashed line with an arrow in fig. 3 represents the conveying direction of the battery pole piece C.

In one embodiment, referring to fig. 2, 3 and 7, the first detection module 10 includes a first position sensing member 11 and a position adjusting member 12; the first position sensing element 11 may be a non-contact ranging device, such as an ultrasonic sensor, a photoelectric sensor, a positioning camera, etc., and is mainly used for detecting the position information of the battery pole piece C in the first direction; the first position sensing member 11 is mounted on the position adjusting member 12 and is connected to the second detecting module 20 in a signal manner, so that the detecting result of the first position sensing member 11 can be fed back to the second detecting module 20 in real time or timely.

The position adjusting member 12 is mounted on the loading module 40 or the supporting mechanism 50, and is mainly used for positioning the first position sensing member 11 on one side of the battery pole piece C in the first direction (for example, on the front surface side of the battery pole piece C); in specific implementation, the position adjusting member 12 may adopt a one-dimensional or multi-dimensional displacement sliding table structure, so that the relative position between the first position sensing member 11 and the battery pole piece C (or together with the second detecting module 20, the detecting module 30, etc.) can be adjusted and set by means of the position adjusting member 12, so that, on one hand, the detected position of the first position sensing member 11 is ensured to be within the surface contour range of the battery pole piece C or the detected position of the battery pole piece C is ensured to be within the detection range of the first position sensing member 11, and on the other hand, the stability and effectiveness of the second detecting module 20 for acquiring the feedback information of the first position sensing member 11 can also be ensured by adjusting the relative position between the first position sensing member 11 and the second detecting module 20.

In another embodiment, the position adjusting member 12 may be omitted, and the first position sensing member 11 may be directly fixed on the loading module 40 according to the actual requirement of the detection operation, so as to fix the relative position between the first position sensing member 11 and the second detecting module 20.

In one embodiment, referring to fig. 2, 3 and 8, the second detection module 20 includes a detection driving member 21 and a second position sensing member 22; the second position sensing member 22 may refer to the first position sensing member 11 and adopts a non-contact ranging device, and is mainly used for detecting the position information of the battery pole piece C in the second direction, where the second position sensing member 22 is in signal connection with the detection module 30, so as to feed back the detected position information to the detection module 30 in real time or timely, so that the detection module 30 can adjust the detection position in response to the detection result of the second position sensing member 22.

The detection driving member 21 is mounted on the loading module 40 or the supporting mechanism 50 and is connected with the first detection module 10 (specifically, the first position sensing member 11) in a signal manner, and the power end of the detection driving member 21 is coupled to the second position sensing member 22; in specific implementation, the detection driving member 21 may adopt a linear power device such as an air cylinder, a motor and a linear module according to actual requirements.

On the one hand, the second position sensing member 22 is positioned on the side of the battery pole piece C in the second direction by the detection driving member 21, specifically such that the detection position of the second position sensing member 22 is located on the side facing the parting plane of the battery pole piece C; on the other hand, the detection driving member 21 can drive the second position sensing member 22 to move along the first direction according to the detection result fed back by the first detection module 10, so as to adaptively adjust the detection position of the second position sensing member 22 according to the up-down runout amplitude of the battery pole piece C, thereby ensuring that the second position sensing member 22 can detect the position information (such as the runout amplitude or the offset in the second direction) of the battery pole piece C in the second direction.

In one embodiment, referring to fig. 2, 3 and 8, the second position sensing part 22 includes a ranging sensor 22a and a third conversion part 22b; wherein, the body of the detection driving piece 21 is fixedly arranged on the device module 40, and when the detection device A is applied to a detection system, the detection driving piece 21 is positioned above the parting plane of the battery pole piece C; the distance measuring sensor 22a may employ a photoelectric sensor (e.g., a laser displacement sensor), and the distance measuring sensor 22a is disposed on the power end side of the detection driving piece 21 in the first direction and coupled with the power end of the detection driving piece 21; the third conversion element 22b is disposed at the probe end of the ranging sensor 22a along the first direction, and when implemented, the third conversion element 22b may be formed by combining optical devices such as a mirror, for example, a 45 ° mirror.

When the detection driving member 21 drives the second position sensing member 22 to move to a position facing the parting surface of the battery pole piece C according to the detection result fed back by the first detection module 10, the light beam provided by the ranging sensor 22a can be output and irradiated to the battery pole piece C along the second direction by means of the third conversion member 22b, and the light beam reflected by the battery pole piece C can be output to the ranging sensor 22a along the first direction after being converted by the third conversion member 22b again, so that the ranging sensor 22a obtains the position information of the battery pole piece C along the second direction.

Therefore, by means of the conversion of the propagation direction of the detection signal by the third conversion element 22b, the component members in the second detection module 20 can be arranged in the relative position along the first direction, that is, the arrangement is equivalent to that the second detection module 20 is in a combined structure with a preset length approximately along the first direction, so that the occupation of the whole second detection module 20 to the transverse space is reduced; in the case of the detection device a, the first detection module 10 and the second detection module 20 may be arranged in a staggered manner in the horizontal direction, so as to reduce the volume of the overall outline of the detection device a and improve the compactness of the overall structure of the detection device a.

The distance measuring sensor 22a is a laser displacement sensor, the diameter of the laser spot of the laser displacement sensor is 38 μm, and the thickness of the battery pole piece C is 150 μm; during the process of conveying and cutting to form the battery pole piece C, the battery pole piece C can deflect left and right relative to the detection module 30; when the laser spot needs to cover the battery pole piece C (particularly a cutting surface) by 100%, the laser displacement sensor can only receive the laser reflected by the battery pole piece C; based on the precondition, the up-down jumping amplitude of the battery pole piece C is minimized to be +/-56 mu m, so that the second detection module 20 can be ensured to detect the position of the battery pole piece C relative to the detection module 30; since the up-down runout amplitude of the battery pole piece C is usually in the millimeter level during the actual detection process or the actual transmission process of the battery pole piece C, the detection position of the ranging sensor 22a in the first direction is adjusted according to the detection result fed back by the first detection module 10, so that the ranging sensor 22 can be ensured to detect the position information (i.e., the left-right runout amplitude) of the battery pole piece C relative to the detection module 30, thereby creating conditions for the detection module 30 to complete focusing imaging.

In one embodiment, referring to fig. 2 to 6, the detection module 30 includes a detection driving member 31, a light source member and a detection assembly; the detection driving member 31 is mainly configured to respond to a detection result of the second detection module 20 (specifically, the second position sensing member 22) so as to drive the detection assembly (or together with the light source member) to move along the second direction toward and away from the battery pole piece C, thereby adjusting a detection position or a focusing position of the detection assembly, and further enabling the detection assembly to image the battery pole piece C at the focusing position and obtain image information; the detection driving member 31 may be a linear power device such as a cylinder, a motor, a linear module, etc. with reference to the detection driving member 21, and is mounted on the loading module 40 or the supporting mechanism 50 and is in signal connection with the second detection module 20. The light source member is mainly used for providing detection light for irradiating the battery pole piece C to the battery pole piece C, so that the detection light can form signal light through reflection, scattering, transmission and the like of the battery pole piece C, and the detection assembly can receive or collect the signal light from the second direction to image the battery pole piece C.

Specifically, the light source member may include a first light source 32 and a second light source 33; wherein, the light path of the first light source 32 and the light path of the detection component at least partially keep coincident, so that the first detection light provided by the first light source 32 can irradiate to the battery pole piece C through the light path of the detection component; the second light source 33 is mainly configured to provide a second detection light different from the first detection light to the battery pole piece C, and a preset included angle is formed between an optical axis of the second detection light provided by the second light source 33 to the battery pole piece C and an optical axis of the signal light collected by the detection assembly, and the preset included angle can be selectively set according to actual detection requirements, for example, 45 °.

In specific implementation, the first light source 32 and the second light source 33 may be disposed at different spatial positions in different connection modes according to needs; taking the second light source 33 as an example, the second light source 33 may be mounted on the detection assembly in a manner of being fixed or adjustable relative to the position of the detection assembly, coupled to the power end of the detection driving member 31, or even fixedly mounted on the loading module 40 or the supporting mechanism 50.

Thus, by using the first light source 32 and the second light source 33, the detection module 30 or the detection device a can perform different burr detection operations; for example, the first light source 32 may employ a highlight light source, and the second light source 33 may employ a highlight line light source; wherein, by means of the first detection light provided by the first light source 32, the detection module 30 or the detection device a can detect the burrs at the cut edge of the copper foil in a bright field detection mode; by means of the second detection light provided by the second light source 33, the detection module 30 or the detection device a can detect the burrs at the cut edges of the aluminum foil in a dark field detection mode, so that the burr detection requirements of various process modes are met.

In other embodiments, the first light source 32 and the second light source 33 may be alternatively configured according to actual detection requirements, or other functional light sources may be added to the light source component, for example, a related light source capable of providing the detection module 30 or the detection device a with the transmissive field detection capability.

The bold dashed lines with arrows in fig. 5 and 6 represent the approximate propagation direction and path of the signal light, and the bold dashed lines with arrows represent the approximate propagation direction and path of the detection light; the bold dashed line and bold solid line in fig. 5 are drawn side by side, and only for clearly showing the signal light and the detection light, they do not indicate that there is a difference in the paths or directions of the two.

In one embodiment, referring to fig. 4 to 6, the detecting assembly includes a detecting camera 34, a detecting lens 35 and a first converting member 36; the detection camera 34 is coupled to the power end of the detection driving member 31, and is mainly used for imaging the battery pole piece C to obtain image information; the detection lens 35 is disposed on the lighting surface side of the detection camera 34, and is mainly used for collecting the signal light formed by the battery pole piece C and converging the signal light to the detection camera 34. The first conversion element 36 is disposed on the optical path between the detection camera 34 and the detection lens 35, so that on one hand, the first detection light provided by the first light source 32 can be incident to the detection lens 35 via the first conversion element 36 (i.e. the optical axis of the first detection light provided by the first light source 32 to the object to be detected is coincident with the optical axis of the detection lens 35), and finally is incident to the battery pole piece C; on the other hand, the signal light collected by the detection lens 35 can be converged to the detection camera 34 via the first conversion member 36, so that the detection camera 34 completes imaging of the battery pole piece C.

In specific implementation, the first conversion element 36 may be formed by combining related optical elements such as a half-mirror, the detection camera 34 may be a high-speed low-exposure area array camera, and the detection lens 35 may be a high-precision telecentric objective lens, so as to improve the overall performance of the detection assembly, and create advantages for improving the detection precision and the detection quality.

In other embodiments, the first conversion member 36 may be disposed at other positions, for example, at an end of the detection lens 35 away from the detection camera 34 along the optical axis direction of the detection lens 35.

In one embodiment, referring to fig. 4 to 6, the detecting assembly further includes a second conversion element 37, mainly for adjusting the propagation directions or paths of the detecting light and the signal light; wherein the detection driving member 31, the detection camera 34, the first conversion member 36, the detection lens 35 and the second conversion member 37 may be sequentially arranged along the first direction in a manner of relatively fixed positions; it can also be understood that the second conversion element 37 is disposed at one end of the detection lens 35 away from the detection camera 34 in the first direction; in practice, the second conversion element 37 may be constructed by combining optical elements such as mirrors, for example 45 ° mirrors. Suitably, the second light source 33 may be arranged at a side of the second conversion member 37 remote from the detection lens 35 in the first direction.

On the one hand, the second conversion member 37 can output the first detection light emitted through the detection lens 35 to the battery pole piece C in the second direction, or can output the signal light formed through the battery pole piece C to the detection lens 35 in the first direction. On the other hand, the arrangement of the relative positions of the component members in the detection module 30 along the first direction is equivalent to making the detection module 30 overall present a combined structure with a preset length approximately in the first direction, which is beneficial to reducing the occupation of the detection module 30 overall to the transverse space; in the case of the detection device a, by arranging the first detection module 10, the second detection module 20, and the detection module 30 in the horizontal direction, the volume of the entire outer contour of the detection device a can be reduced, and the compactness of the entire structure of the detection device a can be improved.

Of course, in other embodiments, the second conversion member 37 may be omitted, and the detection driving member 31, the detection camera 34, the first conversion member 36 and the detection lens 35 are sequentially arranged along the second direction, so that the whole detection module 30 is arranged along the second direction to face the split surface of the battery pole piece C, and although the occupation of the transverse space is increased, different application requirements can be satisfied.

In one embodiment, referring to fig. 1 in combination with fig. 2, the detection device a further includes a light shielding module 80 mounted on the loading module 40, where the light shielding module 80 may adopt a shell or a cover structure formed by combining and constructing light shielding plates, and the first detection module 10, the second detection module 20, the detection module 30, and the like may be disposed in a structural space of the light shielding module 80; the light shielding module 80 can avoid the interference of the ambient light to the detection device a or the mutual interference between the detection devices a in the detection system.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. A detection apparatus for detecting an object under conveyance, the detection apparatus comprising:

the first detection module is used for detecting the position information of the detected object in the first direction;

the second detection module is used for detecting the position information of the detected object in the second direction; the second detection module is configured to be movable in the first direction in response to a detection result of the first detection module to adjust a detection position of the second detection module; and

the detection module is used for detecting the detected object from the second direction; the detection module is configured to be capable of moving relative to the object to be detected along the second direction in response to the detection result of the second detection module so as to adjust the detection position of the detection module;

the first direction, the second direction and the conveying direction of the measured object are perpendicular to each other.

2. The detection apparatus according to claim 1, wherein the detection module includes:

the light source piece is used for providing detection light for the detected object;

the detection component is matched with the light source component; the detection component is used for receiving signal light formed by the tested object in the second direction and acquiring image information of the tested object; and

the detection driving piece is electrically connected with the second detection module, and the power end of the detection driving piece is coupled to the detection assembly; the detection driving piece is configured to drive the detection assembly to move along the second direction in response to the detection result of the second detection module.

3. The detection device of claim 2, wherein the light source member comprises a first light source and/or a second light source; the light path of the first light source is at least partially coincident with the light path of the detection assembly, and the first light source is used for providing first detection light for the detected object; the second light source is used for providing second detection light different from the first detection light for the detected object, and a preset included angle is formed between the optical axis of the second detection light provided by the second light source for the detected object and the optical axis of the signal light collected by the detection assembly.

4. A test device as claimed in claim 3, wherein the test assembly comprises:

the detection camera is used for imaging the detected object to acquire image information of the detected object; a power end of the detection drive is coupled to the detection camera;

the detection lens is used for collecting signal light formed by the detected object and is arranged on the lighting surface side of the detection camera; and

the first conversion piece is arranged on a light path between the detection lens and the detection camera, signal light collected by the detection lens is converged on the detection camera through the first conversion piece, and first detection light provided by the first light source is incident to the detection lens through the first conversion piece.

5. The inspection device of claim 4, wherein the inspection assembly further comprises a second conversion member disposed at an end of the inspection lens away from the inspection camera in the first direction; the first detection light provided by the first light source is incident to the detection lens along the first direction through the first conversion piece;

the second conversion piece is used for outputting the first detection light emitted by the detection lens to the object to be detected along the second direction, and the second conversion piece is also used for receiving the signal light formed by the object to be detected and outputting the signal light to the detection lens along the first direction.

6. The detecting device according to claim 1, wherein the first detecting module includes a first position sensing member positioned on one side of the object to be detected in the first direction to detect position information of the object to be detected; the second detection module is electrically connected with the first position sensing part and is arranged to be capable of moving along the first direction in response to the detection result of the first position sensing part;

and/or

The second detection module comprises a second position sensing piece and a detection driving piece, wherein the second position sensing piece is used for detecting the position information of the detected object in the second direction; the detection module is electrically connected with the second position sensing piece and is used for responding to the detection result of the second position sensing piece to move along the second direction; the power end of the detection driving piece is coupled to the second position sensing piece, and the detection driving piece is electrically connected with the first detection module, so that the second position sensing piece can be driven to move along the first direction in response to the detection result of the first detection module.

7. The detecting device according to claim 6, wherein the second position sensing member includes a distance measuring sensor and a third switching member; wherein:

the distance measuring sensor is used for providing and receiving light beams so as to detect the position information of the measured object; the power end of the detection driving piece is coupled to the ranging sensor, and the detection module is electrically connected with the ranging sensor;

the third conversion piece is arranged at the probe end of the ranging sensor, the third conversion piece is used for outputting the light beam provided by the ranging sensor to the measured object along the second direction, and the third conversion piece is also used for outputting the light beam reflected by the measured object to the ranging sensor along the first direction.

8. The detection device according to any one of claims 1-7, further comprising a loading module for positioning and fixing the detection device in a preset spatial position; the first detection module, the second detection module and the detection module are all arranged on the loading module; wherein:

the detection position of the second detection module is located downstream of the detection position of the first detection module in the conveying direction of the detected object, and the detection position of the detection module is located downstream of the detection position of the second detection module in the conveying direction of the detected object.

9. A detection system comprising a conveyor and a detection device according to any one of claims 1 to 8, the detection device being arranged in cooperation with the conveyor, the conveyor being arranged to carry and convey a test object.

10. The inspection system of claim 9, wherein the conveyor comprises a support mechanism and a conveyor mechanism, a slitting mechanism, and a plurality of traction mechanisms disposed in sequence on the support mechanism, wherein:

the conveying mechanism is used for rolling up the tested material strips, and the slitting mechanism is used for slitting the tested material strips to form a plurality of tested objects; the traction mechanisms are arranged at different height positions relative to the supporting mechanism, and correspond to the measured objects one by one so as to be capable of traction and/or rolling up the corresponding measured objects;

the number of the detection devices is multiple, and the detection devices are arranged on the supporting mechanism in a one-to-one corresponding matching mode with the traction mechanisms, so that the detection devices can detect the cutting edges of the corresponding detected objects.